360 Journal of the Asiatic Society of Bengal. [Aug -Sept., 1913. 
net was used and the rate of steaming was throughout prac- 
tically constant, viz. five knots per hour—the figures may, at 
least, be taken as having a relative value, indicating the varying 
richness of the Copepod fauna in the different areas at the 
time of investigation. 
A consideration of these results shows very clearly that, 
in this region of the coast, the number of Copepoda frequent- 
ing the surface bears a very close relationship to the state of 
the tide, a tow-netting taken at or near low water always show- 
ing a marked superiority as regards numbers of copepods 
a 
8.am. 
3. 
2. 10. 
Copepoda) 
Bia riby A es J 
: lam, 2. *. 
Bae ae Ser eee ete Copepoda. 
April 5 191. é } pei e4 ai. 
= Tide. 
Eta: Ss; 
Note.—The first column gives the n i 
second indicates the height of the de ia — sp peers 
It appears to me that two i : iati 
2 sh that explanations of this variation 
are possible ; firstly, it might be due to a horizontal move- 
